Description
A mixture of ceramide phosphoethanolamines; produced and used by invertebrates such as Drosophila, which lacks sphingomyelin and produced only in very small amounts in mammals; has a role in glial ensheathment of axons in Drosophila; depletion in vitro in mammalian cells leads to ER accumulation of ceramides and apoptosis but ceramide levels are not altered in transgenic mice lacking its biosynthetic enzymes