RNA-binding protein involved in translationally coupled mRNA turnover (PubMed:11051545, PubMed:15314026). Implicated with other RNA- binding proteins in the cytoplasmic deadenylation/translational and decay interplay of the FOS mRNA mediated by the major coding-region determinant of instability (mCRD) domain (PubMed:11051545, PubMed:15314026). Required for efficient formation of stress granules (PubMed:29395067). {ECO:0000269|PubMed:11051545, ECO:0000269|PubMed:15314026, ECO:0000269|PubMed:29395067}. (Microbial infection) Required for internal initiation of translation of human rhinovirus RNA. . This is the function of Ensembl gene identifier ENSG00000009307 (CSDE1, cold shock domain containing E1).