tRNA-queuosine(34) beta-mannosyltransferase activity
trna-queuosine(34) beta-mannosyltransferase activity
Catalysis of the reaction: GDP-alpha-D-mannose + queuosine34 in tRNA(Asp) = GDP + H+ + O-4''-alpha-D-mannosylqueuosine34 in tRNA(Asp).