Involved in the oxidative degradation of abscisic acid. 2-cis-(+)-abscisate + O2 + reduced [NADPH--hemoprotein reductase] = (+)-8'-hydroxyabscisate + H(+) + H2O + oxidized [NADPH--hemoprotein reductase] Plant hormone degradation; abscisic acid degradation. In internodes and expanding leaves. Weak expression in seedlings. Not induced by ethylene or abscisic acid treatments, and salt or osmotic stresses. Belongs to the cytochrome P450 family.