Predicted to enable translation initiation factor binding activity. Predicted to be involved in RNA metabolic process; mRNA export from nucleus in response to heat stress; and positive regulation of translational initiation. Predicted to be located in cytosol and nuclear speck. Predicted to be part of RNA polymerase II, core complex. Predicted to be active in P-body. Is expressed in several structures, including alimentary system; brain; cranium; heart; and respiratory system. Orthologous to human POLR2D (RNA polymerase II subunit D). [provided by Alliance of Genome Resources, Apr 2022]