Enables actin filament binding activity; calmodulin binding activity; and microfilament motor activity. Involved in positive regulation of actin filament polymerization and positive regulation of cellular response to insulin stimulus. Located in several cellular components, including membrane raft; ruffle membrane; and stereocilium bundle. Orthologous to human MYO1C (myosin IC). [provided by Alliance of Genome Resources, Apr 2022]