Converts a mannosyl-(N-acetylglucosaminyl)2-diphosphodolichol into a (mannosyl)2-(N-acetylglucosaminyl)2-diphosphodolichol.
Converts a (mannosyl)6-(N-acetylglucosaminyl)2-diphosphodolichol into a (mannosyl)7-(N-acetylglucosaminyl)2-diphosphodolichol.
Converts a (mannosyl)2-(N-acetylglucosaminyl)2-diphosphodolichol into a (mannosyl)3-(N-acetylglucosaminyl)2-diphosphodolichol.
Converts a (mannosyl)9-(N-acetylglucosaminyl)2-diphosphodolichol into a (mannosyl)9-(N-acetylglucosaminyl)2-diphosphodolichol.