Involved in pollen wall development. Catalyzes the conversion of long-chain fatty acids to the corresponding omega-hydroxylated fatty acids. Omega-hydroxylated fatty acids, together with in-chain hydroxylated fatty acids, are key monomeric aliphatic building blocks for sporopollenin synthesis during exine formation. an omega-methyl-long-chain fatty acid + O2 + reduced [NADPH--hemoprotein reductase] = an omega-hydroxy-long-chain fatty acid + H(+) + H2O + oxidized [NADPH--hemoprotein reductase] Specifically expressed in anthers from early stage 9 to early stage 12 of flower development, with a peak during stages 9 to 11. Lack of exine in pollen grain walls. Belongs to the cytochrome P450 family. Extended C-terminus. Truncated N-terminus.