Enables RNA polymerase II-specific DNA-binding transcription factor binding activity. Involved in several processes, including gonad development; negative regulation of Ras protein signal transduction; and negative regulation of vulval development. Located in nucleus. Expressed in germ line; gonad; and
hyp7 syncytium. Human ortholog(s) of this gene implicated in mismatch repair cancer syndrome. Is an ortholog of human TFDP1 (transcription factor Dp-1); TFDP2 (transcription factor Dp-2); and TFDP3 (transcription factor Dp family member 3).