decreased enzyme/coenzyme level abnormal galactosylceramidase level decreased galactosylceramidase level decreased galactocerebroside galactosidase level decreased galactocerebrosidase level decreased lactosylceramidase level decreased galactocerebroside beta-galactosidase level decreased beta-galactosylceramidase level decreased galactosylceramide beta-galactosidase level decreased ceramide galactosidase level MP:0020265 decreased cerebroside beta-galactosidase level decreased level of the enzyme that removes galactose from ceramide derivatives (galactocerebrosides). decreased galactosylceramidase I level decreased galactosylcerebrosidase level decreased galcerase level decreased beta-galactocerebrosidase level decreased galactocerebroside-beta-D-galactosidase level decreased lactosylceramidase I level decreased D-galactosyl-N-acylsphingosine galactohydrolase level decreased cerebroside galactosidase level