Predicted to enable RNA binding activity; enzyme binding activity; and nucleotidyltransferase activity. Predicted to be involved in U6 snRNA 3'-end processing; mRNA polyadenylation; and pre-mRNA cleavage required for polyadenylation. Predicted to act upstream of or within mRNA processing. Predicted to be located in cytosol; nucleolus; and nucleoplasm. Predicted to be part of mRNA cleavage and polyadenylation specificity factor complex. Predicted to be active in nuclear speck. Is expressed in central nervous system; genitourinary system; and sensory organ. Orthologous to human TUT1 (terminal uridylyl transferase 1, U6 snRNA-specific). [provided by Alliance of Genome Resources, Apr 2022]