Calcium-binding peroxygenase involved in the degradation of storage lipid in oil bodies. RH + ROOH = ROH + ROH. Binds 1 heme b (iron(II)-protoporphyrin IX) group. Homodimer. Expressed in pollen (at protein level). Not expressed in leaf, root, stem, tepal, ovary, style, filament or stigma (at protein level). Transmembrane regions are predicted by sequence analysis tools, but these regions probably constitute hydrophobic domains associated to phospholipids. The proline-knot motif may be involved in targeting to lipid bodies. Belongs to the caleosin family.