Involved in very long chain fatty acids (VLCFA) omega-hydroxylation. Required for the synthesis of saturated VLCFA alpha, omega-bifunctional suberin monomers. In vitro import assays suggest an association with the outer chloroplastic membrane; also detected in the chloroplasts of guard cells when expressed in a heterologous system. Expressed in roots endodermis, anthers, stigmas, stomata of young pedicels of inflorescences, the placenta region of siliques, at the level of the hilum in matures seeds, at the junction of siliques to pedicels where abscission of floral parts takes place and in nectary glands. No visible vegetative growth phenotype. Very large reduction in alpha, omega-bifunctional C22 to C24 saturated suberin components in seeds. No effect on seed coat permeability. Belongs to the cytochrome P450 family.