Appears to function as an adapter protein that bridges proteins together or proteins with mRNAs (PubMed:34331014). May function as a ubiquitin ligase-substrate adapter (PubMed:34331014, PubMed:34870550). Additionally, associates with translating cytoplasmic ribosomes and may promote the expression of specific mRNAs (PubMed:34331014, PubMed:34870550). {ECO:0000269|PubMed:34331014, ECO:0000269|PubMed:34870550}. This is the function of SH3BGRL (SH3 domain binding glutamate rich protein like, Ensembl gene identifier ENSG00000131171).