has primary output galactosylceramide galactosylceramide metabolic process galactosylceramide biosynthetic process https://github.com/geneontology/go-ontology/issues/30616 The chemical reactions and pathways resulting in the formation of galactosylceramides, any composed of a ceramide backbone covalently linked to a galactose. The galactose can be sulfated or further elongated with one more monosaccharide often a sialic acid. MetaCyc:PWY-7840 gala-series glycosphingolipid biosynthesis galactosylceramide anabolism galactosylceramide formation galactosylceramide synthesis GO:0006682 galactosylceramide biosynthesis glycosphingolipid biosynthetic process biosynthetic process galactolipid biosynthetic process ceramide biosynthetic process