Predicted to enable several functions, including DNA-binding transcription repressor activity, RNA polymerase II-specific; nucleotide binding activity; and protein homodimerization activity. Predicted to be involved in DNA damage response and negative regulation of transcription by RNA polymerase II. Predicted to be located in cytosol and nuclear body. Is expressed in several structures, including alimentary system; brain; connective tissue; genitourinary system; and hemolymphoid system. Orthologous to human ZBTB4 (zinc finger and BTB domain containing 4).