Predicted to enable LRR domain binding activity. Predicted to contribute to DNA-directed 5'-3' RNA polymerase activity. Predicted to be involved in transcription by RNA polymerase II. Located in nucleus. Part of RNA polymerase II, core complex. Is expressed in several structures, including alimentary system; branchial arch; integumental system; limb; and nervous system. Orthologous to several human genes including POLR2J (RNA polymerase II subunit J). [provided by Alliance of Genome Resources, Apr 2022]