Enables several functions, including deacetylase activity; heat shock protein binding activity; and promoter-specific chromatin binding activity. Involved in several processes, including positive regulation of cell differentiation; positive regulation of macromolecule metabolic process; and response to alkaloid. Located in chromatin; cytoplasm; and nucleus. Used to study Peyronie's disease; alcohol use disorder; and anxiety disorder. Biomarker of bronchitis; chronic obstructive pulmonary disease; endometriosis; pulmonary emphysema; and visual epilepsy. Human ortholog(s) of this gene implicated in stomach cancer. Orthologous to human HDAC2 (histone deacetylase 2). [provided by Alliance of Genome Resources, Apr 2022]