Short answer by and large is: no (either incoming or outgoing)
By their very nature...DDoS attacks (and there are many types and variables) are designed to overwhelm bandwidth and/or gateway/router/node data processing and/or take advantage of a programming flaw - this is a consumer level gateway device, and even enterprise level equipment can be quickly and easily overwhelmed.
And of course, assuming a device/node on the LAN side is infected with DDoS-participating malware, the gateway generally allows outgoing connections, and aside from any specific user configuration restrictions, it has no logic to detect/prevent them.
Obviously, the gateway cant prevent a device (like a PC) from being infected with malware, though it can help mitigate/detect such infections.
It can prevent certain specific DoS attacks on itself/LAN devices, but this functionality is pretty limited and covers DoS (not really DDoS) scenarios.
You certainly wont find any consumer level equipment capable of (realistically) protecting you from DDoS attacks, so, don't bother looking for that feature.