Predicted to enable DNA binding activity and DNA-directed 5'-3' RNA polymerase activity. Predicted to be involved in DNA-templated transcription. Predicted to be located in nucleus. Predicted to be part of RNA polymerase II, core complex. Is an ortholog of C. elegans rpb-6. In C. elegans, rpb-6 is involved in regulation of cell cycle switching, mitotic to meiotic cell cycle.