This magnesium-dependent enzyme catalyzes the hydrolysis of ATP coupled with the translocation of calcium from the cytosol out of the cell, into the endoplasmic reticulum, or into organelles (By similarity). Involved in salt stress tolerance (PubMed:24286292). ATP + Ca(2+)(in) + H2O = ADP + Ca(2+)(out) + H(+) + phosphate Activated by calmodulin. Induced by cold stress. The N-terminus contains an autoinhibitory calmodulin-binding domain, which binds calmodulin in a calcium-dependent fashion. Belongs to the cation transport ATPase (P-type) (TC 3.A.3) family. Type IIB subfamily. Truncated N-terminus. Truncated N-terminus. Truncated N-terminus.