Converts tryptophan to indole-3-acetaldoxime, a precursor for tryptophan derived glucosinolates and indole-3-acetic acid (IAA). 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] Belongs to the cytochrome P450 family. Extended N-terminus. Extended N-terminus.