The way I was using it is I included it into ColdFusion component.cfc that all CFCs extend by default:
So I also make test CFC and a cfm page:
When I run cfm file and expend the dump output I see following:

As you can see the objectid() method is missing.
Now I remove the include from component.cfc and make my test component extend BaseComponent
Run cfm again and get following:

Now objectid() method is seen in the dump.