tetracosenoyl-CoA + heptadecasphing-4-enine <=> N-tetracosenoyl-heptadecasphing-4-enine + CoA + H(+)
tetracosenoyl-coa + heptadecasphing-4-enine <=> n-tetracosenoyl-heptadecasphing-4-enine + coa + h(+)