Enables DNA binding activity and DNA-binding transcription factor activity. Involved in positive regulation of transcription by RNA polymerase II and sprouting angiogenesis. Acts upstream of or within lymphangiogenesis; motor neuron axon guidance; and negative regulation of DNA-templated transcription. Predicted to be located in nucleus. Predicted to be part of RNA polymerase II transcription regulator complex. Is expressed in several structures, including axis; caudal vein plexus; eye; liver; and proliferative region. Orthologous to human E2F8 (E2F transcription factor 8).