ribose 1,5-bisphosphate isomerase activity
Catalysis of the reaction: alpha-D-ribose 1,5-bisphosphate = D-ribulose 1,5-bisphosphate.
GO:0016861
intramolecular oxidoreductase activity, interconverting aldoses and ketoses
is_a
ribose-1,5-bisphosphate isomerase activity
exact