Reaction catalyzed by indolylacetylinositol arabinosyltransferase (2.4.2.34)

		+			=			+
	UDP-L-arabinose	+		(indol-3-yl)acetyl-1D-myo-inositol	=		UDP	+		(indol-3-yl)acetyl-myo-inositol 3-L-arabinoside