histone deacetylase activity (H3-K9 specific)

Catalysis of the reaction: histone H3 N6-acetyl-L-lysine (position 9) + H2O = histone H3 L-lysine (position 9) + acetate. This reaction represents the removal of an acetyl group from lysine at position 9 of the histone H3 protein.

Source:http://purl.uniprot.org/go/0032129