Actin-based motor molecule with ATPase activity that localizes to the mitochondrion outer membrane (PubMed:19932026, PubMed:23568824, PubMed:25447992). Motor protein that moves towards the plus-end of actin filaments (By similarity). Required for mitochondrial inheritance during mitosis (PubMed:25447992). May be involved in mitochondrial transport or positioning (PubMed:23568824). Myosin is a hexamer of 2 heavy chains and 4 light chains: interacts with myosin light chains MYL9 and MYL12B. Widely expressed in multiple tissues and cell lines. The MyMOMA (MYO19-specific mitochondrial outer membrane-association) region mediates association with the mitochondrion outer membrane via electrostatic interaction. Belongs to the TRAFAC class myosin-kinesin ATPase superfamily. Myosin family.