You can set the Portfolio in the backend. Go to your Uranium > Theme Options > Portfolio > Here Sections:
[1] Portfolio title: The title in main archive portfolio page.
[2] Portfolio page content: select the page, content this page will be add in after content archive portfolio page
[3] Portfolio banner: background banner portfolio page.
[4] Portfolio item: The items show each page in portfolio.
[5] Portfolio single style: style single portfolio page.
[6] Portfolio style: style portfolio archive page.
[7] Portfolio column: The column number show in portfolio style grid.
[8] Portfolio filter by: the filter by category or tag and select multi item name category or tag below ( empty for show all items ).