Google-backed gift card platform raises $5m series A funding.

Gyft, a US-based digital gift card platform which enables customers to handle gift cards via mobile devices, has raised $5m series A funding from new investors, venture capital funds A-Grade Investments, Social+Capital Partnership and Karlin Ventures, and angel investors Haas Portman and David O. Sacks.

Previously, in 2012, the company raised a $1.25m seed round from Google Ventures, the venture capital arm of search engine company Google, and seed stage investors Founder Collective and 500 Startups.

With the funding, Gyft…