Are translation journals still a thing?
In mathematics there are still regularly published English language translations of Russian language journals. Examples:


St. Petersburg Mathematical Journal 
Functional Analysis and its
Applications
Russian Mathematical Surveys
Transactions of the Moscow Mathematical Society


There are quite a few others.

For most (if not all) of these journals it is often now the authors themselves who supply the translation (I believe this was sometimes the case long ago, although various US professional societies organized formal translation programs, sometimes with funding from agencies like the NSF; the issue is that translating research articles requires substantial understanding of the content, and this greatly limits the pool of potential translators).

Here is a Japanese source journal:
Sugaku Expositions