RSH1 (RELA-SPOT HOMOLOG); catalytic. similar to RSH3 (RELA/SPOT HOMOLOG 3), catalytic [Arabidopsis thaliana] (TAIR:AT1G54130.1); similar to RelA-SpoT like protein RSH1 [Nicotiana tabacum] (GB:BAC76004.1); similar to hypothetical protein OsJ_010350 [Oryza sativa (japonica cultivar-group)] (GB:EAZ26867.1); similar to predicted protein [Physcomitrella patens subsp. patens] (GB:EDQ59467.1); contains InterPro domain Metal-dependent phosphohydrolase, HD region; (InterPro:IPR003607); contains InterPro domain TGS (InterPro:IPR004095); contains InterPro domain Metal-dependent phosphohydrolase, HD region, subdomain (InterPro:IPR006674); contains InterP