The function of GK5 (glycerol kinase 5, Ensembl gene identifier ENSG00000175066) is as follows. Skin-specific kinase that plays a key role in glycerol metabolism, catalyzing its phosphorylation to produce sn-glycerol 3- phosphate. Involved in skin-specific regulation of sterol regulatory element-binding protein (SREBP) processing and lipid biosynthesis. .