Predicted to enable ADP binding activity; ATP binding activity; and actin filament binding activity. Involved in positive regulation of opsonization and regulation of macrophage activation. Acts upstream of or within cellular response to interferon-gamma. Located in brush border; cytoskeleton; and phagocytic vesicle. Is expressed in several structures, including gonad; lower leg rest of mesenchyme; molar; nervous system; and skeletal musculature. Orthologous to human MYO18A (myosin XVIIIA). [provided by Alliance of Genome Resources, Apr 2022]