What's the title of the reindeer song? and who sings it?

One of the best scenes in the film is where Umuji says the song that is playing is his favorite and he turns up the volume. Then he starts dancing wildly around the room, jumping on and off of Timofei.

The English subtitles showed translations of some of the words to the song:
"Towards the sun in a deer sledge we run
Into snowstorm and the dawn that is where we have gone."

I guess the title of the song and the singer and composer were probably listed in the credits, but I can't read Russian!

Has anybody got any info on this song?