Add PostGIS spatial functions to a custom schema other than "public" in PostgreSQL

Recently, I created a PostGIS 2.0.3 database on a PostgreSQL 9.1 database server using pgAdmin. The "PostGIS" extension was found installed in "Extensions". Al spatial functions were added to the "public" schema. That's fine.

Now I want to store all my data into a new scheme called "gc". However, how can I make all spatial function installed in that "gc" schema? There is no single function in the schema. However, when I tried to import/new a feature class from ESRI ArcCatalog 10.1 to this schema, it worked! The feature class could be imported and displayed in QGIS.

Could anyone give me any tip or idea about it?

I am new to PostgreSQL and PostGIS.