Predicted to enable actin filament binding activity and microfilament motor activity. Acts upstream of or within several processes, including defense response to Gram-positive bacterium; neutrophil degranulation; and positive regulation of cell migration. Located in cortical actin cytoskeleton. Part of filamentous actin. Is expressed in several structures, including brain; genitourinary system; heart; hemolymphoid system gland; and liver. Orthologous to human MYO1F (myosin IF). [provided by Alliance of Genome Resources, Apr 2022]