ACER3 is a protein coding gene. Endoplasmic reticulum and Golgi ceramidase that catalyzes the hydrolysis of unsaturated long-chain C18:1-, C20:1- and C20:4-ceramides, dihydroceramides and phytoceramides into sphingoid bases like sphingosine and free fatty acids at alkaline pH. Ceramides, sphingosine, and its phosphorylated form sphingosine-1-phosphate are bioactive lipids that mediate cellular signaling pathways regulating several biological processes including cell proliferation, apoptosis and differentiation. Controls the generation of sphingosine in erythrocytes, and thereby sphingosine-1-phosphate in plasma. Through the regulation of ceramides and sphingosine-1-phosphate homeostasis in the brain may play a role in neurons survival and function. By regulating the levels of proinflammatory ceramides in immune cells and tissues, may modulate the inflammatory response.
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Protein Aliases: 351-; ACER3; Alkaline CDase 3; Alkaline ceramidase 3; Alkaline dihydroceramidase SB89; Alkaline phytoceramidase; AlkCDase 3; APHC; PHCA; phytoceramidase, alkaline
Gene Aliases: 1110057L18Rik; 5430429L08Rik; ACER3; APHC; AV015045; PHCA
Molecular Function: hydrolase