Enables cis-regulatory region sequence-specific DNA binding activity. Predicted to be involved in positive regulation of transcription by RNA polymerase II. Predicted to be located in nucleus. Predicted to be part of PcG protein complex and transcription regulator complex. Is expressed in several structures, including brain; genitourinary system; hemolymphoid system gland; liver; and lung. Orthologous to human YY2 (YY2 transcription factor). [provided by Alliance of Genome Resources, Apr 2022]