Involved in the biosynthesis of the cyanogenic glucosides linamarin and lotaustralin and of the nitirle glucosides rhodiocyanoside A and D. Can use L-isoleucine > L-valine as substrate, but not L-leucine, L-phenylalanine or L-tyrosine. L-isoleucine + 2 O2 + 2 reduced [NADPH--hemoprotein reductase] = (1E,2S)-2-methylbutanal oxime + CO2 + 2 H(+) + 3 H2O + 2 oxidized [NADPH--hemoprotein reductase] Exclusively detected in roots. Unlike in cassava, neither cyanogenic glucosides nor nitrile glucosides seem to be transported over long distances within the plant. Belongs to the cytochrome P450 family.