Catalyzes with low efficiency E and Z isomers of indole-3-acetaldoxime from tryptophan (Trp). L-tryptophan + 2 O2 + 2 reduced [NADPH--hemoprotein reductase] = (E)-(indol-3-yl)acetaldehyde oxime + CO2 + 2 H(+) + 3 H2O + 2 oxidized [NADPH--hemoprotein reductase] Confined to buds. Belongs to the cytochrome P450 family.