N-acyl-4-hydroxyeicosasphinganine + CoA + H(+) => (4R)-hydroxyeicosasphinganine + a fatty acyl-CoA
n-acyl-4-hydroxyeicosasphinganine + coa + h(+) => (4r)-hydroxyeicosasphinganine + a fatty acyl-coa
N-acyl-4-hydroxyeicosasphinganine + CoA + H(+) => (4R)-hydroxyeicosasphinganine + a fatty acyl-CoA
n-acyl-4-hydroxyeicosasphinganine + coa + h(+) => (4r)-hydroxyeicosasphinganine + a fatty acyl-coa