The function of MYO7B (myosin VIIB, Ensembl gene identifier ENSG00000169994) is as follows. Myosins are actin-based motor molecules with ATPase activity. Their highly divergent tails are presumed to bind to membranous compartments, which would be moved relative to actin filaments. As part of the intermicrovillar adhesion complex/IMAC plays a role in epithelial brush border differentiation, controlling microvilli organization and length (PubMed:24725409, PubMed:26812018, PubMed:32209652). May link the complex to the actin core bundle of microvilli. {ECO:0000269|PubMed:24725409, ECO:0000269|PubMed:26812018, ECO:0000269|PubMed:32209652, ECO:0000305|PubMed:24725409, ECO:0000305|PubMed:26812018}.