Predicted to enable poly(U)-specific exoribonuclease activity, producing 3' uridine cyclic phosphate ends. Predicted to be involved in RNA splicing and U6 snRNA 3'-end processing. Predicted to be located in intercellular bridge and nucleoplasm. Predicted to be active in nucleus. Human ortholog(s) of this gene implicated in poikiloderma with neutropenia. Orthologous to human USB1 (U6 snRNA biogenesis phosphodiesterase 1). [provided by Alliance of Genome Resources, Apr 2022]