ObjectProperty only works in the context of the current database. It has no parameters to know to look in other databases, just an objectID as the first parameter.
From Books Online:
id
Is an expression that represents the ID of the object in the current database. id is int and is assumed to be a schema-scoped object in the current database context.
Edit: Corrected.
Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability