Metabolizes arachidonic acid mainly to 19-hydroxyeicosatetraenoic acid (HETE). an organic molecule + O2 + reduced [NADPH--hemoprotein reductase] = an alcohol + H(+) + H2O + oxidized [NADPH--hemoprotein reductase] Highest level in colon. Low levels in liver and small intestine. P450 can be induced to high levels in liver and other tissues by various foreign compounds, including drugs, pesticides, and carcinogens. Belongs to the cytochrome P450 family.