What does SBR token do?

Saber is a Decentralized Exchange that provides the liquidity foundation for stablecoins , which is a type of cryptocurrency whose value is pegged to another asset, like the US dollar or bitcoin.3 Eyl 2021

Saber is not supported by Coinbase .

Saber is the first automated market maker optimized for trading pegged assets on Solana. Our protocol enables Solana users and applications to efficiently trade between stable pairs of assets, as well as earn yields by providing liquidity to the platform .