Can Shopify allow redirecting customers to external auction sites?

Looking for a POS / eCommerce solution that will allow me to show a product on the storefront but instead of “add to cart” being able to have users click on a hyperlink taking them to an alternative site. On occasion, I list things on auction sites. I want people who find it in my store to still see it, but be able to click on the product or a link and have it take them to the auction site. Is something like that possible with Shopify?