What is Launcher3 4.4.4-9 application? I'm new Android user. I just found that I have "Launcher3 4.4.4-9" on my Moto G 2-gen. 

It has permissions to make calls. I cannot uninstall it.

Is this normal? This is system app/service?
From F-Droid wiki,

Name: Launcher3
ID: com.android.launcher3
Description

Android 4.4 homescreen from AOSP ...

The version (4.4.4-9) also confirms that it is the Android KitKat (4.4.4) AOSP Launcher. It's normal and it's a system app.