Yes, VOLES is a Scrabble word!

Letter values in Scrabble US: V 4, O 1, L 1, E 1, S 1.

Is it a valid word?

VOLES is a valid word in the official Scrabble dictionary (US), the UK Scrabble Dictionary and Words with Friends (ENABLE).

any of various small mouselike rodents of the family Cricetidae (especially of genus Microtus) having a stout short-tailed body and inconspicuous ears and inhabiting fields or meadows

Also: field mouse.