Predicted to enable DNA-directed 5'-3' RNA polymerase activity; nucleic acid binding activity; and zinc ion binding activity. Predicted to contribute to RNA polymerase III activity. Predicted to be involved in tRNA transcription by RNA polymerase III and termination of RNA polymerase III transcription. Predicted to be part of RNA polymerase III complex. Human ortholog(s) of this gene implicated in hypomyelinating leukodystrophy 21. Orthologous to human POLR3K (RNA polymerase III subunit K).