Predicted to enable DNA-binding transcription factor activity, RNA polymerase II-specific and RNA polymerase II cis-regulatory region sequence-specific DNA binding activity. Acts upstream of or within negative regulation of transcription by RNA polymerase II. Located in cytoplasm and nucleoplasm. Human ortholog(s) of this gene implicated in lethal congenital contracture syndrome. Orthologous to human ZBTB42 (zinc finger and BTB domain containing 42). [provided by Alliance of Genome Resources, Apr 2022]