Term Name:	mannan synthase activity
Synonyms:	galactomannan beta-1,4-mannosyltransferase activity, mannan beta-1,4-mannosyltransferase activity
Definition:	Catalysis of the reaction: mannan(n) + GDP-mannose = mannan(n+1) + GDP. This reaction is the formation of the beta-(1->4)-linked mannan backbone in substrates such as galactomannan.
Ontology:	GO: Molecular Function [GO:0051753]    QuickGO    AmiGO