Acts upstream of or within cardiac muscle cell development; in utero embryonic development; and vasculogenesis. Located in Z disc. Part of filamentous actin. Is expressed in several structures, including diaphragm; heart; and musculature. Human ortholog(s) of this gene implicated in Klippel-Feil syndrome 4. Orthologous to human MYO18B (myosin XVIIIB). [provided by Alliance of Genome Resources, Apr 2022]