sphingolipid delta-4 desaturase activity
Catalysis of the reaction: an N-acylsphinganine + 2 Fe(II)-[cytochrome b5] + O2 + 2 H+ = an N-acylsphing-4-enine + 2 Fe(III)-[cytochrome b5] + 2 H2O.
GO:0016717
oxidoreductase activity, acting on paired donors, with oxidation of a pair of donors resulting in the reduction of molecular oxygen to two molecules of water
is_a
delta-4 sphingolipid desaturase activity
exact
SPBC887.15c SPBC3B8.07c