this song is very popular in Xingjiang where I grew up there. So nice to hear it again. I think this is a Russian song but they were singing in Uyghur language. The place I guess is Yili in the north part of Xingjiang provence in China.
Of course this is Uyghur song, maybe with Tatar influence. The original version of this song could have been either Tatar or Russian. The language is Uyghur, people who are singing and dancing are Uyghurs, so it hardly makes this Russian or Tatar even thought this song does have some Russian words.