Catalyzes the transfer of palmitoleate from palmitoleoyl-acyl carrier protein (ACP) to Kdo(2)-lipid IV(A) to form Kdo(2)-(palmitoleoyl)-lipid IV(A). (9Z)-hexadecenoyl-[ACP] + alpha-Kdo-(2->4)-alpha-Kdo-(2->6)-lipid IVA = (9Z)-hexadecenoyl-(Kdo)2-lipid IVA + holo-[ACP] Bacterial outer membrane biogenesis; lipopolysaccharide biosynthesis. Belongs to the LpxL/LpxM/LpxP family. LpxP subfamily. Extended N-terminus. Extended N-terminus.