Is sUSD a DeFi?

Could you clarify for me, is sUSD indeed a part of the DeFi ecosystem? I understand that DeFi, or decentralized finance, encompasses a wide range of financial services and products that operate on blockchain networks without intermediaries. Given that sUSD is a stablecoin designed to maintain a stable value relative to the US dollar, I'm curious about its role and integration within the broader DeFi landscape. Does it facilitate lending, borrowing, trading, or other DeFi applications? Or is its primary function more focused on providing a stable value anchor for other DeFi activities?