Predicted to enable DNA-binding transcription factor activity, RNA polymerase II-specific and RNA polymerase II cis-regulatory region sequence-specific DNA binding activity. Predicted to be involved in regulation of transcription by RNA polymerase II. Predicted to be located in nucleus. Is expressed in testis. Orthologous to human RFX8 (regulatory factor X8). [provided by Alliance of Genome Resources, Apr 2022]