Enables DNA-binding transcription repressor activity, RNA polymerase II-specific and RNA polymerase II intronic transcription regulatory region sequence-specific DNA binding activity. Involved in negative regulation of transcription by RNA polymerase II. Located in nucleus. Is expressed in several structures, including early conceptus; genitourinary system; liver; muscle tissue; and spleen. Orthologous to human ZC3H8 (zinc finger CCCH-type containing 8). [provided by Alliance of Genome Resources, Apr 2022]