Enables uridylyltransferase activity. Involved in RNA 3' uridylation; oocyte maturation; and polyuridylation-dependent mRNA catabolic process. Predicted to be located in cytosol and nucleoplasm. Is expressed in autopod; early conceptus; genitourinary system; sensory organ; and skeleton. Orthologous to human TUT7 (terminal uridylyl transferase 7). [provided by Alliance of Genome Resources, Apr 2022]