Predicted to enable mRNA binding activity. Predicted to be involved in deadenylation-dependent decapping of nuclear-transcribed mRNA. Predicted to act upstream of or within nuclear-transcribed mRNA catabolic process. Predicted to be located in cytoplasm. Predicted to be part of Lsm1-7-Pat1 complex. Predicted to be active in P-body. Orthologous to human LSM1 (LSM1 homolog, mRNA degradation associated).