Predicted to enable DNA-binding transcription repressor activity, RNA polymerase II-specific and RNA polymerase II cis-regulatory region sequence-specific DNA binding activity. Predicted to be involved in negative regulation of transcription by RNA polymerase II; regulation of cytokine production; and regulation of immune system process. Predicted to be located in nucleus. Predicted to be active in nucleoplasm. Orthologous to human ZBTB14 (zinc finger and BTB domain containing 14).