label: 4-hydroxysphinganine ceramide fatty acyl 2-hydroxylase activity
label_lc: 4-hydroxysphinganine ceramide fatty acyl 2-hydroxylase activity
description: "Catalysis of the reaction: an N-(1,2 saturated acyl)-(4R)-hydroxysphinganine + 2 Fe(II)-[cytochrome b5] + 2 H+ + O2 = an N-(2R-hydroxyacyl)-4R-hydroxysphinganine + 2 Fe(III)-[cytochrome b5] + H2O."