Myosins are actin-based motor molecules with ATPase activity. Unconventional myosins serve in intracellular movements. Their highly divergent tails are presumed to bind to membranous compartments, which would be moved relative to actin filaments (By similarity). Highly expressed in the central nervous system, including the forebrain, midbrain and lower medulla. In the lower medulla, it is broadly expressed throughout the reticular formation. It is expressed in the retrotrapezoid nucleus and the nucleus of the solitary tract, as well as motor neurons of the facial, vagal and ambiguus nuclei (PubMed:28779001). Expressed in neonatal inner-ear organs. 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-1 (MYH1).