Integrate Identity into existing application

I have an application which has NO ASP .Net membership/ASP .Net identity.
When using ASP.Net membership in the past i would run aspnet_regsql.exe which would create the required tables etc. Would the same be applicable with ASP .Net Identity? If yes would i then just copy the code from an existing application which uses Identity and use that across my own web pages (register, login etc etc)?
Thanks