The function of LSM14A (LSM14A mRNA processing body assembly factor, Ensembl gene identifier ENSG00000257103) is as follows. Essential for formation of P-bodies, cytoplasmic structures that provide storage sites for translationally inactive mRNAs and protect them from degradation (PubMed:16484376, PubMed:17074753, PubMed:29510985). Acts as a repressor of mRNA translation (PubMed:29510985). May play a role in mitotic spindle assembly (PubMed:26339800). {ECO:0000269|PubMed:16484376, ECO:0000269|PubMed:17074753, ECO:0000269|PubMed:26339800, ECO:0000269|PubMed:29510985}.