Enables DNA-binding transcription repressor activity, RNA polymerase II-specific and sequence-specific DNA binding activity. Acts upstream of or within regulation of transcription involved in G1/S transition of mitotic cell cycle. Predicted to be located in nucleoplasm. Predicted to be part of MLL1 complex and RNA polymerase II transcription regulator complex. Is expressed in several structures, including alimentary system; genitourinary system; limb; nervous system; and sensory organ. Orthologous to human E2F6 (E2F transcription factor 6). [provided by Alliance of Genome Resources, Apr 2022]