Calmodulin mediates the control of a large number of enzymes, ion channels and other proteins by Ca(2+) (PubMed:32821880). Among the enzymes to be stimulated by the calmodulin-Ca(2+) complex are a number of protein kinases and phosphatases (PubMed:32821880). In trophozoites and schizonts, localizes throughout the cytoplasm. In merozoites, localizes to the apical complex. Calmodulin is not involved in the mechanism of chloroquine resistance. Belongs to the calmodulin family.