Predicted to enable RNA polymerase I activity and chromatin binding activity. Predicted to contribute to DNA-directed 5'-3' RNA polymerase activity. Predicted to be involved in negative regulation of protein localization to nucleolus and rRNA transcription. Located in chromosome and nucleus. Part of RNA polymerase I complex. Is expressed in several structures, including alimentary system; brain; early conceptus; genitourinary system; and integumental system. Human ortholog(s) of this gene implicated in acrofacial dysostosis Cincinnati type. Orthologous to human POLR1A (RNA polymerase I subunit A). [provided by Alliance of Genome Resources, Apr 2022]