The rupee depreciated 5 paise to a record low of 79.11 against the US dollar in opening trade on Friday as persistent foreign funds outflows weighed on investor sentiments. At the interbank foreign exchange, the rupee opened on a weak note at 78.99 against the American dollar, then lost ground to quote at 79.11 -- its all-time low level, registering a fall of 5 paise from the last close.