What does "Service google play" application actually do? First of all "Service google play" (in Russian "Сервисы google play") is not play market appication which is used to download and install applications from play market. So what is the problem with it? I spot that "Service google play" (in Russian "Сервисы google play") took about 100Mb (for strange searching data) and cleanuping application data does not help - after several minutes they are magically restored. I wonder - can  it be safely removed (or disabled) from phone? Or it is a system important process?

Note

It probably good to provided a link to google play, but I can not find that service (may be english name is different) in play market.
Added to the exaggerated "Apps may not work if you uninstall Google Play services" from the app's description (see e.g. the answer of SuperThomasLab):

Many apps found on Google Play depend on this, but by far not all. Apps e.g. from F-Droid mostly can live without it. One can think of Google Play Services as kind of "shared library" for "many things Google".

When using a custom ROM without GApps, it can e.g. be substituted by migroG GmsCore – I've just done that on one of my devices :) microG GmsCore, as the name-part "Core" suggests, offers the essential services many apps rely on – but without all the overhead Google's app ships with. So it should be much less aggressive towards the device's resources. Please see the linked XDA thread for details and up-to-date information – which also gives you ideas on what Google Play Services does:


Ads/Analytics API: will not be covered by microG
Auth API: authentication with Google's services. Covered by microG
Cast API: in the works (microG is still young :)
Drive API: Google Drive stuff (not yet in microG)
Fitness API: not (yet) in microG
Games API: not (yet) in microG
Cloud Messaging API: fully functional in microG
Location Provider API: fully functional in microG
Geofencing API: not yet supported in microG
Maps API: partly implemented in microG (work in progress)
Plus API: minimal support with microG
Wearable API: work on this has just started in microG


From this list you can get an idea what Google Play Services include. And from the "state" mentioned toward them for microG, you should see why it's more lightweight. I for one hope that, if implemented at all, Fitness + Games at least go to a separate app which one only need to install when needed; I don't need that, so for me it would be bloatware :)