Predicted to enable transcription corepressor activity. Predicted to be involved in negative regulation of transcription by RNA polymerase II. Predicted to act upstream of or within regulation of DNA-templated transcription. Predicted to be located in nucleus. Predicted to be part of Sin3-type complex. Predicted to be active in chromatin. Human ortholog(s) of this gene implicated in chromosome 15q24 deletion syndrome. Orthologous to human SIN3A (SIN3 transcription regulator family member A).