Term Name:	chitobiosyldiphosphodolichol beta-mannosyltransferase activity
Synonyms:	GDP-mannose-dolichol diphosphochitobiose mannosyltransferase activity, GDP-mannose:chitobiosyldiphosphodolichol beta-D-mannosyltransferase activity, guanosine diphosphomannose-dolichol diphosphochitobiose mannosyltransferase activity
Definition:	Catalysis of the reaction: an N,N'-diacetylchitobiosyl-diphospho-di-trans,poly-cis-dolichol + GDP-alpha-D-mannose = a beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-alpha-D-GlcNAc-diphospho-di-trans,poly-cis-dolichol + GDP + H+.
Ontology:	GO: Molecular Function [GO:0004578]    QuickGO    AmiGO