Yes, VULGATES is a Scrabble word!

Letter values in Scrabble US: V 4, U 1, L 1, G 2, A 1, T 1, E 1, S 1.

Is it a valid word?

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

the Latin edition of the Bible translated from Hebrew and Greek mainly by St. Jerome at the end of the 4th century; as revised in 1592 it was adopted as the official text for the Roman Catholic Church