Dear Kumar,
In role template Allow Auto Provisioning [ Alphanumeric(1)] [Y/N] indicates auto provisioning in target system after approval or not
Role template is used to import the back-end roles into BRM,in another way it will information about the role status in BRM.
if i understand correctly,your issue is to define default roles
follow the below link to know get more details
Maintain Default Roles in BRM GRC AC 10.1
BR
Baithi