Predicted to enable several functions, including N-terminal myristoylation domain binding activity; enzyme activator activity; and enzyme binding activity. Acts upstream of or within G2/M transition of mitotic cell cycle. Located in myelin sheath. Part of voltage-gated potassium channel complex. Is expressed in several structures, including alimentary system; cardiovascular system; nervous system; respiratory system; and sensory organ. Human ortholog(s) of this gene implicated in catecholaminergic polymorphic ventricular tachycardia 4; familial hypertrophic cardiomyopathy; long QT syndrome 14; and long QT syndrome 15. Orthologous to human CALM1 (calmodulin 1); CALM2 (calmodulin 2); and CALM3 (calmodulin 3). [provided by Alliance of Genome Resources, Apr 2022]