Yes, HERRING is a Scrabble word!

Letter values in Scrabble US: H 4, E 1, R 1, R 1, I 1, N 1, G 2.

Is it a valid word?

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

valuable flesh of fatty fish from shallow waters of northern Atlantic or Pacific; usually salted or pickled
commercially important food fish of northern waters of both Atlantic and Pacific

Also: clupea harangus.