Enables enzyme binding activity. Predicted to be involved in histone deacetylation; negative regulation of transcription, DNA-templated; and regulation of transcription by RNA polymerase II. Predicted to be located in cytosol and nucleoplasm. Predicted to be part of histone deacetylase complex and transcription regulator complex. Is expressed in eye; genitourinary system; heart; and limb. Orthologous to human RCOR3 (REST corepressor 3). [provided by Alliance of Genome Resources, Apr 2022]