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 expressed in aerial parts. Highest expression in the apical leaves. Also detected in the second leaf from the top and in the stem. Not expressed in older leaves or 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.