Enables ATP hydrolysis activity; myosin light chain binding activity; and plus-end directed microfilament motor activity. Predicted to be involved in several processes, including actin filament organization; regulation of mitochondrial fission; and vesicle transport along actin filament. Predicted to act upstream of or within mitochondrion migration along actin filament. Predicted to be located in cytosol and mitochondrial outer membrane. Predicted to be part of myosin complex. Predicted to be active in actin cytoskeleton; cytoplasm; and vesicle. Is expressed in adenohypophysis; alimentary system; skeleton; vibrissa; and vomeronasal organ. Orthologous to human MYO19 (myosin XIX). [provided by Alliance of Genome Resources, Apr 2022]