I have never used it but looking at the definition and knowing what I know about PCI compliance, I would say no as the card number you receive is masked.
Right, sorry I misread. So that stores the credit card information in Shopify vault (Shopify is PCI-compliant). The card details is secured by SSL in transit to Shopify and I assume you will not store it on your servers, you will just use the session Id (tokenisation of sorts) to process payment. Still looks like you will comply.