Function
Mediates the hydrolysis of some nucleoside diphosphate derivatives. Can use diadenosine 5',5'''-P(1)P(5) pentaphosphate (Ap(5)A), diadenosine 5',5'''-P(1)P(4) tetraphosphate (Ap(4)A) and diadenosine 5',5'''-P(1)P(3) triphosphate (Ap(3)A) as substrates.