Predicted to enable U6 snRNA 3'-end binding activity. Predicted to be involved in P-body assembly and mRNA splicing, via spliceosome. Predicted to act upstream of or within RNA splicing and mRNA processing. Predicted to be located in nucleus. Predicted to be part of Lsm1-7-Pat1 complex; Lsm2-8 complex; and nucleus. Predicted to be active in P-body. Is expressed in brain; central nervous system ganglion; and cerebral cortex ventricular layer. Orthologous to human LSM3 (LSM3 homolog, U6 small nuclear RNA and mRNA degradation associated). [provided by Alliance of Genome Resources, Apr 2022]