Calcium-binding peroxygenase involved in the degradation of storage lipid in oil bodies. May be involved in the interaction between oil bodies and vacuoles during seed germination (By similarity). RH + ROOH = ROH + ROH. Binds 1 heme b (iron(II)-protoporphyrin IX) group. Homodimer. Expressed in roots, leaves, shoots and flowers. Not regulated by abscisic acid, desiccation and osmotic stress. Transmembrane regions are predicted by sequence analysis tools, but these regions probably constitute hydrophobic domains associated to phospholipids. The proline-knot motif (71-80) may be involved in targeting to lipid bodies. Belongs to the caleosin family.