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. May link the complex to the actin core bundle of microvilli (Probable). Part of the IMAC/intermicrovillar adhesion complex/intermicrovillar tip-link complex composed of ANKS4B, MYO7B, USH1C, CDHR2 and CDHR5 (PubMed:24725409, PubMed:26812018). Interacts with CDHR2 (PubMed:24725409). Interacts with CDHR5 (PubMed:24725409). Interacts with USH1C (PubMed:24725409, PubMed:26812017, PubMed:26812018). Interacts with ANKS4B; requires initial interaction with USH1C (PubMed:26812018). Enriched in the microvilli of the intestinal brush border. Belongs to the TRAFAC class myosin-kinesin ATPase superfamily. Myosin family. Represents an unconventional myosin. This protein should not be confused with the conventional myosin-7 (MYH7).