Enables calmodulin-dependent protein kinase activity and myosin light chain kinase activity. Involved in protein phosphorylation and sarcomere organization. Located in cytoplasm. Colocalizes with actin cytoskeleton. Is expressed in heart atrium; heart ventricle; inner ear; and liver. Orthologous to human MYLK3 (myosin light chain kinase 3). [provided by Alliance of Genome Resources, Apr 2022]