Predicted to enable DNA binding activity and DNA-directed 5'-3' RNA polymerase activity. Predicted to be involved in transcription by RNA polymerase II. Predicted to be located in nucleus. Predicted to be part of RNA polymerase complex. Is expressed in embryo. Orthologous to human RPAP1 (RNA polymerase II associated protein 1). [provided by Alliance of Genome Resources, Apr 2022]