ADP-ribose glycohydrolase that hydrolyzes ADP-ribosyl-cysteine bonds (By similarity). Specifically reverses the SirTM-mediated mono-ADP-ribosylation, by releasing ADP-ribose from the target protein. May be involved in the modulation of the response to host-derived oxidative stress. 4-O-(ADP-D-ribosyl)-L-aspartyl-[protein] + H2O = ADP-D-ribose + H(+) + L-aspartyl-[protein]